Chromium, zinc, copper, lead, cadmium, mercury, and arsenic are among the most common metal contaminants found on remediation project sites. REMOTOX® (Calcium Polysulfide Solution) is frequently used as an effective reducing agent for treatment of heavy metal contaminated soils.
The US EPA has identified calcium polysulfide as a reagent suitable for use in in-situ chemical reduction of multiple contaminants. Several abstracts and studies are available through CLU-IN, the Hazardous Waste Clean-Up Information website, sponsored by the US EPA. Additionally, bench scale evaluation and case studies on ex-situ and in-situ Cr(VI) remedial methods, using calcium polysulfide, can be found in the Chromium (VI) Handbook available for purchase at CRC Press Online or at Amazon.com.
*Quick Links to Case Studies:
In-situ remediation of heavy metals using sulfur-based treatment technologies
In-situ chemical reduction at the Morses Pond Culvert, Wellesley, Massachusetts
Remediation of Chromium-Contaminated Site using Calcium Polysulfide (see page 6)
In-Situ Hexavalent Chromium Reduction and Geochemical Fixation in Limestone
In-Situ Redox Manipulation (ISRM) Barrier in the K-100 Area of the Hanford Site
Calcium Polysulfide Treatment of Cr(VI)-Contaminated Soil
*Links to third-party sites ("Hyperlinks") do not constitute an endorsement by Graus Chemicals and Graus Chemicals is not responsible for the availability of these sites or their contents.